343  
CDGM40 PGUM 081613  
CLIGUM  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE TIYAN GUAM  
213 AM CHST MON AUG 09 2021  
   
...............................
 
 
...THE GUAM INTERNATIONAL AIRPORT CLIMATE SUMMARY FOR AUGUST 8 2021...  
 
CLIMATE NORMAL PERIOD: 1991 TO 2020  
CLIMATE RECORD PERIOD: 1945 TO 2021  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 86 1:30 PM 93 1991 87 -1 88  
MINIMUM 79 6:53 AM 71 1967 76 3 79  
AVERAGE 83 82 1 84  
 
PRECIPITATION (IN)  
YESTERDAY 0.03 2.61 2012 0.57 -0.54 0.26  
MONTH TO DATE 6.49 4.30 2.19 1.06  
SINCE JUN 1 20.33 23.06 -2.73 12.72  
SINCE JAN 1 38.31 43.27 -4.96 31.46  
 
SNOWFALL (IN)  
YESTERDAY 0.0  
MONTH TO DATE 0.0  
SINCE JUN 1 0.0  
SINCE JUL 1 0.0  
SNOW DEPTH 0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE JUN 1 0 0 0 0  
SINCE JUL 1 0 0 0 0  
 
COOLING  
YESTERDAY 18 17 1 19  
MONTH TO DATE 140 136 4 158  
SINCE JUN 1 1287 1214 73 1344  
SINCE JAN 1 3860 3689 171 3964    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 6 RESULTANT WIND DIRECTION SE (120)  
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)  
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (90)  
AVERAGE WIND SPEED 6.8  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.3  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
LIGHT RAIN  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 94 12:00 AM  
LOWEST 53 2:00 PM  
AVERAGE 74  
   
......................................................
 
 
THE GUAM INTERNATIONAL AIRPORT CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 87 91 1986  
1987  
1994  
MINIMUM TEMPERATURE (F) 76 73 1952  
 
SUNRISE AND SUNSET  
AUGUST 9 2021........SUNRISE 6:07 AM CHST SUNSET 6:45 PM CHST  
AUGUST 10 2021........SUNRISE 6:07 AM CHST SUNSET 6:45 PM CHST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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